Hope you can have a pleasant shopping experience in our shop! Please contact us if you have any problems. We will try our best to solve your problem Description: More comfortable: suspension ball design More wear-resistant: leather wear-resistant surface Softer: thicker padded sponge More breathable: air duct design More anti-slip: non-slip bee hole design Reflective: reflective strip design at the rear of the cushion Specifications: v Product Name: New type air duct big butt seat v Material: leather fabric + thick sponge v Color: black red / black blue v Specifications: suspension ball / spring v Application: bicycle / mountain bike / road bike v Features: new air guide groove, thick high-elastic sponge, soft and comfortable front narrow circle Package Included: 1*bicycle seat Note: 1. Due to the different monitor and light effects, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement.