1. Material: knitted fabric
2. Filler: sponge
3. High elasticity molding sponge core, leaning on the slow sinking feeling lumbar spine comfort and relaxation feeling
4. Back elastic band design, elasticity is not deformed, firm and not easy to shift
5. Durable zipper, smooth and easy to pull
6. Adjustable switch, lumbar support vibration speed can be freely adjusted with a wire control switch, with strong and weak two files
7. The natural curve of the human back design, soothing lumbar aches and pains
8. Two sides of the embrace design, fit and support the two sides of the muscle
9. Soft rebound particles, the use of comfortable massage frequency, the contact surface covered with a large number of massage columns softer and more comfortable
10. Size: about 33 x 31 x 10cm

Warm tips: manual measurement size, for reference only, specific to prevail in kind