Types:A Features: -The seat cushion has a honeycomb structure, greatly reduces heat transfer between the buttocks and the seat, increases air circulation and keeps you cool when seated. -Ultra-flexible polymer gel support seat cushion conforms to your tailbone and shape, absorbing pressure points. -It is stably fixed in any place and difficult to slip off. -Ideal for car, truck, train and plane travel, classroom use. -Soft and elastic double design gel material can be pushed back to the original shape immediately after stretching. It always keeps its original shape and does not lose its support even after long-term use. Specifications: .