Material: Silicone Size: 10CM*5CM (inner diameter 24mm is suitable for 25mm, 28mm, 30mm diameter handle bar) EASY TO USE: Expand grips and attach to bar. Quickly convert any barbell, weight bar, pull-down cable, or kettlebell to a thicker 2-inch grip for improved training. Easy to install and remove in seconds. Compatible with various gym equipment to enhance workout versatility. Thicker handles increase muscle engagement, promoting greater strength and development in the forearms, hands, and upper body. Helps build grip strength and targets the forearms, upper arms, and upper body. Reduces stress on joints, elbows, and wrists by distributing weight over a larger surface area, helping minimize joint discomfort and strain on hands and fingers. MULTI-PURPOSE: Converts standard dumbbells, barbells, pull-up bars, push-up bars, rope attachments, and other bar equipment into a thick-grip workout tool.