Description: [Material]Electronic roll down acceptor for selector is made of quality pp material,which is durable and wear resistant. [Function]According to the material and diameter of the coin,it is very accurate to distinguish real and counterfeit coins. [Easy to Use]You can freely set the desired currency,no need to compare the sample currency,the CPU automatically memorizes the setting. [Feature]Switch of normal open and normal close for signal output of validation. [Wide Application]Suitable for water machine,doll,game machine,vending machines,coin operated telephone,coin operated washing machines,coin operated toy cars,massage chairs. Specifications: Material:PP Size: 12.5cmx12.5cm/4.92inch x 4.92inch Note: Please allow slightly errors due to manual measurement and different monitors. Package included: 1 Piece Vending Machine Acceptor 1 Set Screws