Mass Transfer Products Industries manufactures Plastic Customized Laser Marked Ear Tags. Mass Transfer Products Industries is an ISO 9001:2000 certified company. The company is manufactured from internationally recommended grades of Polyurethane. The Plastic Customized Laser Marked Ear Tags uses leading edge laser technology to etch the custom markings onto the ear tag. The Plastic Customized Laser Marked Ear Tags are available With permanent laser markings, scratch proof and guaranteed so that it does not to fade.