Sit-up aid

1. Product name:Sit-up aid
2. Material: manganese steel + foam + silica gel
3. Weight: 950g
4. Color: black
5. Size: chassis 12cm/width 26.5cm/height: 16.5-20cm
6. Product features:
1) Multi-level height adjustment
2) The large suction cup is stable and non-slip, not loose
7.SKU:BW3202288