Suitable Sizeapprox.12x12x1.5 inches (30x30x4 cm) , the Straps with Acsergery Velcro on the back. The Square chair pads are suitable for most kitchen/bar stool, office/dinning chair or any other chair. The straps on the back will keep the chair pad in place and not move during use. . COMFORTABLE AND ERGONOMIC DESIGN : Outer--high quality mesh fabric, Inner--high quality sponge.Super Breathable, Absorb Sweat Fast,Strong Long Lasting, Slip Resistant Back.The chair pads with Acsergery good support force decreasing pressure on the and relief you from pain of sciatica, herniated discs, tailbone injuries, etc, will provide more Comfort & Relaxation. . PORTABLE AND MULTIPURPOSE:This square seat cushion comes with Acsergery four straps which you can tie to the back of your chair. Simply pick up chair pad and take it with Acsergery you for added comfort anywhere in your home. You can also use cushion to your chairs in Pub, Club, Bistro, Patio, Garden, Dining, Kitchen, Home etc, to reduce the uncomfortable caused by the long-term sitting. . DURABLE AND EASY TO CARE:Strength and durability and built into every inch. Wipe with Acsergery a damp cloth, Pat gently , or Clean by vacuum. The most important is taht these stool covers are MACHINE WASHABLE Machine wash cold, do not bleach, do not iron, just tumble dry with Acsergery no heat and your chair pads will look as good as new. . PORTABLE AND MULTIPURPOSE:Our square cushion with Acsergery superior mesh fabric, super breathable sponge filler. GUARANTEED quality that stands out in other square seat cushions .