Unipack Yoga blocks are a favorite prop for yogis of all levels. Offering great support and stability for challenging poses, as well as providing a versatile and useful assist for restorative poses, and more. Used under hands, feet or your seat, Unipack lightweight block ensures proper alignment and safely assists in deepening stretches.This premium quality, high-density is made of EVA foam. Extremely lightweight yet equally durable and sturdy, this block is also made with closed cell technology, preventing moisture and bacteria. Deepen your stretches and align posture with less effort and no strain. Includes: 9 inches x 6 inches x 4 inches blocks. Unipack is the premiere source for the finest quality yoga and fitness accessories that combine stylish design with exceptional durability.