1. Anti-slip design, giving you better grip and reducing the chance of injury2. Strengthens biceps, triceps, forearms, overall upper body training and muscle building3. Less stress on joints, less injury, less imbalance4. Material: Silicone5. Product size: 10CM x 5CM (inner diameter 24mm, suitable for 25mm 28mm 30mm diameter handle bars)6. Product weight: 0.3KG/pair

http://olla.gr/2pcs-dumbbell-barbell-grip-silicone-thick-bar-handles-red/