We can customize this padlock product, its characteristic is No need to use a key, an app or Bluetooth. Your fingerprint is your key.Multi Fingerprints Input – The smart padlock can record up to 10 fingerprints. The 1st fingerprint registered will be set as the administrator fingerprint by default. The 2nd to 10th are guest fingerprints. Only admin user can authorize to register or delete fingerprints.The material of it is the anti-cutting, anti-theft oval shaped padlock is great to protect your cabinet and belongings. The corrosion-resistant and water-resistant lock body is made of zinc alloy and the lock bean is made of stainless steel.Suitable for gym lockers, school lockers, suitcases, bags, doors, handbags, offices, gates, warehouses, cabinets, furnitures, wardrobes, sheds, luggages, bicycles and others that you want to protect.Please follow the instruction to register or delete fingerprints properly. In order to have a better recognition of fingerprint while in use, please constantly adjust the contact position of the finger and the fingerprint reader when register the fingerprint.