Item Name: Module Car Round Belts Tape Pulley Transmission Rubber Band Rubbers Belt. [content]: about 28 pieces in one packageMaterial:RubberQuantity:About 28pcs[weight]: about 7.4g per packageBrand new with high qualityThe mixed transmission belt bag is a real small transmission belt. The material of this product is different from that of rubber band. This product is a model transmission belt specially produced for model small pulley transmission. This transmission belt bag is made of a variety of small belts with different lengths.[Specification]: the folding length is 4.5cm to 18.5cm (4.5-5.5-6.5-7-7.5-8.5-9.5-9-10.5-11.5-11.7-12.5-18.5). There will be errors in manual measurement. Please take the real object as the standard.Package Include : 1 bag (about 28 pieces)Notice:1.Transition: 1cm=10mm=0.39inch.2.Please allow 1-2mm error due to manual measurement and make sure you do not mind before ordering.3.Please understand that colors may exist chromatic aberration as the different placement of pictures. *Please make