If you are looking for added support to lengthen your yoga poses and hold them longer while staying comfortable, a yoga block is the ideal accessory to help achieve this goal. The Gaiam yoga block is an essential yoga tool for aiding in poses and flexibility. Yoga blocks help to provide the stability and balance needed in your practice for optimal alignment, deeper poses, and increased strength. These lightweight and supportive foam blocks are constructed of a durable foam. They are light enough to carry to yoga classes or around the home yet strong enough for daily poses. The beveled edges with the non-slip surface are designed for a more secure grip. Our yoga props are ideal for all sorts of poses as well as general floor stretches or incorporating with Pilates. Use under your hands, feet or seat to ensure the proper alignment needed in order to safely support and modify poses to suit your level of flexibility. Yoga blocks are great for extending poses while maintaining concentration. For maintaining your yoga wedge block, we recommend spot cleaning with mild detergent and then towel or air dry. Dimensions are 9W x 6H x 4D / weight: 4. 6oz.