HEX Solid Rubber Dumbbells PairsRobust solid end rubber dumbbells. Comfort grip handle peaks at 34mm diameter with an excellent knurl ensures a good and comfortable grip. Handle 135mm long. In 2. 5kg incremental pairs, Rubber HEX Dumbbells look good, feel good, and are extremely durable for any Commercial or Home Gym. Dumbbells are one of the most versatile pieces of gym equipment you can own. If you're bored with the same barbell exercises, you can replicate the same movement