Color:Grey, Brown, Red, Black, Blue Material:PU+sponge+alloy Product Size: 11.22 in x 9.25 in x 11.81 in Package Includes:bike seat with backrest x 1 Note: - Please refer to the measurement. Tiny measuring error is allowable in normal range. - There might be a little color difference due to the monitor, camera or other factors, please refer to the physical item.

Ultimate Comfort: Enjoy a wide and comfortable cycling experience with our extra-large seat cushion; reduces pressure with soft memory foam; perfect for long rides without discomfort Adjustable Backrest: Customize the height for optimal support with our bike seat 's adjustable backrest; ensures proper posture; adds luxury to your daily commutes Stable and Quality: Feel secure with a strong connecting rod that provides stable support; high-density PU surface is waterproof and stain-resistant; withstands wear for lifelong durability Universal Fit: Adaptable to various bike types including tricycles, mountain bikes, and electric bikes; versatile design for easy switch between rides; enhances biking flexibility Easy Installation: All necessary tools included like a hex wrench and an open-end wrench; effortless setup; single package with complete accessories simplifies installation process