【Material】 belt made ofhigh quality rubber,which is for long term use.
【Size】The folded length size odtransmission engine drive round belt is about 4.5 cm to 12 cm (4.5-5.5-6-6.5-7-7.5-8-8.5-9.5-10-10.5-11-12cm) and the diameter size is about (3.5-4-4.5-5-5.5- 6-6.5-7-7.5-8cm)
【Widely Used】Pulley rubber band combination set for diy model toy,robots, cars, rc toy, rc airplane,etc.
【Package】You will receive 28pulley belts engine drive belts of different size.