ITEM NAME:Silicone Hand Grip Muscle Training Ring Finger Exerciser Strengthener 100LBS Description: Made of high grade material, which is soft, durable and also eco-friendly. Comfortable for you to grip it, non-toxic and no irritation to your skin. Best for training finger, hands and forearm strength and endurance. Lightweight, easy and convenient to carry. The use of premium silicone manufacturing, soft, no cracking. Specification: Material: Silicone Diameter: approx. 8 cm/ 3.15 inch Weight Resistance Options: 100 LB Type: Finger Gripper Package Includes: 1 Piece Finger Gripper SKU: DMO0009938962009096.Best for training finger, hands and forearm strength and endurance. Type: Finger Gripper. 1 Piece Finger Gripper. Comfortable for you to grip it, non-toxic and no irritation to your skin. Material: Silicone.