Marsui 10 Lbs Diving Brick Swimming Pool Dive Brick Rubber Diving Brick Safety Water Brick Diving Weight for Strength and Rescue Training Lifesaver Equipment Summer Swimming Pool Safety Accessories

Solid high quality rubber brick. Great for teaching kids to dive under water and retrieve heavy items and bring them up to help strengthen swimming techniques.

It’s a solid 10 pound brick doesn’t smell like rubber is clean and great to use in the pool

Great for working out in the pool.

Has a strong odor when first arrived and still strong rubber chemical smell months later but it is 10 lbs and durable

Used to train and certify our lifeguards. Outside coating is good quality and does not have any sharp edges.

We used to play with these as kids. Now my grandkids love it tremendously.

Like other reviews, very buoyant. I can jump into a pool with this, hold my breath, and float... Not dense enough to cause you to sink while holding this.

It's great. Ten pound rubber brick for diving, pretty straightforward.