My daughter needs small weights for her 7th grade science fair project, are these appropriate or for small children only?

They are NOT accurate. I have a digital kitchen scale that I have no reason to doubt, and the 1 gram pieces weight under while the 10 and 20 gram pieces are over. Do not expect accuracy for any purpose, including between themselves.

What is the total weight for all combined pieces? I'd like to use these in a ship building activity- are they waterproof too?

There are 54 pcs, totaling 300g. 20-1g, 20-5g, 10-10g, and 4-20g. Yes they are waterproof as they appear to be of a coated resin /plastic composite. Good quality.

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Learning Resources Hexagram Weights, Set of 54 Weights, Includes 1g, 5g, 10g, 20g, Ages 8+ | Math Manipulatives for Kids, Teacher Supplies, Back to School, Classroom Must Haves, Set of 54 Pieces, Ages 8+

Learning Resources Hexagram Weights, Set of 54 Weights, Includes 1g, 5g, 10g, 20g, Ages 8+ | Math Manipulatives for Kids, Teacher Supplies, Back to School, Classroom Must Haves, Set of 54 Pieces, Ages 8+

Product ID: 358823669

🌈Color-coded for instant visual sorting

🧩Stackable hexagonal design for easy handling

⚖️54 precision weights for exact mass

8.60 OMR

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Description

⚖️ Master mass measurement with colorful precision—don’t let your classroom miss out!

READY TO USE STORAGE - Comes with a compact storage box to keep your classroom or home organized and clutter-free.
VIBRANT COLOR CODING - Quickly identify weights with bright, distinct colors—perfect for fast-paced classrooms.
BUILT FOR YOUNG MINDS - Durable, hand-powered weights designed for ages 8+ to foster hands-on math mastery.
PRECISION IN EVERY GRAM - Set includes 20x1g, 20x5g, 10x10g, and 4x20g weights for versatile measurement.
ERGONOMIC HEXAGONAL SHAPE - Stackable design prevents rolling and enhances grip for smooth learning moments.

The Learning Resources Hexagram Weights set offers 54 stackable, color-coded plastic weights ranging from 1g to 20g, designed for ages 8 and up. Ideal for classroom or home use, these weights facilitate hands-on learning of mass measurement with a durable, ergonomic hexagonal shape and convenient storage box included.

Specifications

Age Range Description	5 years to 9 years
Asin	B000URFT3G
Best Sellers Rank	#74,773 in Toys (See Top 100 in Toys) #948 in Educational Science Kits
Brand Name	Learning Resources
Color	Multicolor
Customer Reviews	4.6 4.6 out of 5 stars (656) 4.6 out of 5 stars
Educational Objective	Math
Global Trade Identification Number	00765023042924
Included Components	Weights
Indoor Outdoor Usage	Indoor
Is Assembly Required	No
Item Dimensions	15.5 x 11.2 x 3.8 centimeters
Item Type Name	Hexagram Weights
Item Weight	0.32 Kilograms
Manufacturer	Learning Resources
Manufacturer Maximum Age Months	120.0
Manufacturer Minimum Age Months	12.0
Manufacturer Part Number	LER4292
Material Type	Plastic
Model Number	LER4292
Number Of Packs	1
Number Of Players	2-4
Operation Mode	Manual
Power Source	Hand-powered
Set Name	Hexagram Weights 54-Piece Set
Size	54 Pieces
Supported Battery Types	No batteries required
Theme	Space
Unit Count	1 Count
Upc	858160441337 885520233547 765023042924

Reviews

User

Weights and measures

Great fun while learning . My grandchildren found this to be helpful in understanding the way we measure weights etcGood quality value good

19.12.2025

User

Complemento a la báscula

Es una caja pequeña con pesas de varios pesos que se pueden encajar entre ellas, son todos pesos en gramos, en total todas las pesas deben pesar unos 400-500gr. Bien para empezar y complemento de la báscula de learning resources.

23.12.2014

User

Gut verpackt und leicht zu händeln

Gute Gewichte - wir brauchten sie für die Schule - schnell zu erkennen, dank der Farben und praktisch verpackt - alles bestens!

31.05.2026

User

Learning basic math

For my newphew to learn basic math and weight

17.10.2021

User

parfait

parfait, merci

22.12.2024

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8.60 OMR

Duties & taxes included

In stock

Sold byAmazon OMANDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to OMAN.

Secure transaction

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Fast, free shipping, member pricing & priority support.

Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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