Synthetic leather weight training power grips. - Brand: KEY FIT STEADY - Sides: Left, Right - Material: Synthetic leather - Use: For weight training M size STEADY Cross Grip Power Grip [Keiichi Kuno Collaboration / Can Grip & Push] Muscle Training Muscle Training Goods Ultimate Gear ST-H01 Black Camouflage Gray Lavender Used only once for about 5 minutes after opening. I am selling it because it did not fit my hands. Thank you for looking.