SKLZ Smart GloveOne of the keys to great ball striking is a firm left wrist at swing impact. The Smart Glove, with removable wrist guide, sets your wrist in the correct position through the swing with a proper wrist release.Smart Glove is a dual-purpose guide to help ensure better golf ball contact.Back of golf glove includes removable rigid wrist guide to keep player from casting and groove correct golf swing mechanics through the entire swing At the range of home practise with the guide in the glove to give the proper feel for wrist hinge and release, then remove it to take that feel to the course Palm side of glove includes specialised fabric to outline proper golf grip positioning and superior feel For tee, fairway, and approach shots as well as putting Wrist guide can be removed for using glove for official play High-quality Cabretta leather Available in S, M, ML, L and XL for Left Hand and Right Hand.