2pcs yoga blocks and 1pcs yoga cotton strp. 2pcs yoga blocks and 1pcs yoga cotton strap. Yoga block: 23 15 8cm / 9.0 5.9 3.1in. 1 Yoga Cotton Strap. 2 Yoga Block. EVA Blocks: Nonslip surface and beveled edges for easy gripping, and itu0027s for safely support and modify poses to suit your flexibility.