amazon basics Rubber Encased Hex Dumbbell Weight Set Of 2, 2.5 Kg,Black

From the manufacturer

Reliable Strength Training Equipment Built for Performance & Longevity

The solid cast-iron core ensures maximum durability and resistance to bending or breaking, even with frequent use

Hexagonal Rubber-Coated Ends

The rubber encasing protects flooring, reduces noise, and prevents rolling for safer, stay-in-place storage.

1 Challenge Your Strength

2 Feel the Grip

3 Stay Grounded

Dumbbell for resistance training—great for arms, chest, back, core, and legs
Solid cast-iron core for reliable strength; will not bend or break after repeated use
Hexagon-shaped rubber-encased ends help prevent rolling and promote stay-in-place storage
Contoured, textured, chrome handle for a comfortable, secure grip