Yoga Block EVA Foam Soft Non-Slip Latex-Free (a). Color Navajo Heron Material Foam Item Dimensions LxWxH 4 x 9 x 6 inches Yoga Block is lightweight and provides the stability needed for optimal alignment, deeper poses and increased strength. If you feel tight, don't risk injury. Durable foam with a nonslip surface. Dimensions Each block: 9"L x 6"W x 4"H |