Besides great foam support, this RIMIKING M3306 Series Massage Gaming Chair has a unique design called a spring cushion, is more comfortable, and has better resilience. As the excellent quality with tens of springs, we believe this gaming chair will give you an excellent experience. Color: Black,Blue,Gray,White. Features: Ergonomic design; Seat height adjustable; 360-degree swivel base; Built-in Massage Lumbar Support; Scratch and stain-resistant bonded leather; High-density thicker sponge ( high resilience and high permeability); Explosion-proof gas spring of international standards; 5-star metal base; Smooth-rolling quiet nylon castors make a super stable structure; Easy-to-follow instructions. Materials: Faux leather, High-density foam, Metal Base. Dimensions: 20.5"W x 28.4"D x 50.4-54.3"H. Weight Capacity: no more than 350 lbs.