CYLEN Home-Memory Foam Rayon Made from Bamboo Charcoal Infused Ventilated Orthopedic Seat Cushion for Car and Wheel Chair - Washable & Breathable Cover (Black) Description Features: Velboa Imported RAYON MADE FROM BAMBOO CHARCOAL INFUSION -provides superb ventilation ability and reduces temperature from rising,Unlike other seat cushions for office chairs, our sciatica pain relief foam cushion uses activated charcoal to remove unwanted smells and stains. STATE OF THE ART MEMORY FOAM - 90% memory foam ,10% rayon made from bamboo,provides quality seating comfort and pain relief experience NEWLY MODIFIED COVER - allows a maximum air flow with non-slip feature 5 YEAR WARRANTY - comes with 5 year warranty and 60 days no hassle return.we guarantee you will enjoy a better life with the rayon made from bamboo memory foam cushion PAIN RELIEF-The design of our seat and lower back cushion will provide pressure relief from your tailbone and lower back area TIPS - Since its made of high-density memory foam, keep in mind that the firmness of the cushion can be affected by temperature fluctuations. Especially in cold weather, many users mention removing the cushion from the car; otherwise, it can become firm and hard and wont return to its soft, supportive state until the material warms up again Product Details: Brand: CYLEN Special Feature: Pet Tools Color: Black Size: 1 Count (Pack of 1) Fill Material: Memory Foam Brand: CYLEN Special Feature: Pet Tools Color: Black Size: 1 Count (Pack of 1) Fill Material: Memory Foam Shape: Semicircular Age Range (Description): Adult Recommended Uses For Product: Reading Use for: Buttocks Material: High Density Memory Foam with Gel infused Item Firmness Description: Medium Firm Product Care Instructions: Machine Wash Number of Pieces: 1 Pattern: Solid Item Weight: 1.8 Pounds Material Feature: Breathable Variety: Memory Foam,Seat Cushion Material Type Free: BPA Free Fabric Type: Velboa Model Name: seat cushion Product Dimensions: 16.54 x 13.39 x 3.27 inches Item Weight: 1.8 pounds Manufacturer: CYLEN Country of Origin: China Item model number: CYLEN0981 Is Discontinued By Manufacturer: No Refill: Memory Foam Warranty Description: PLEASE NOTE:Since the memory foam cushion is heat responsive and needs to be kept in the room temperature to ensure its softness, please leave it at room temperature for 10 hours before use in the cold winter. Batteries required: No Import: Imported