Description: Material: Wood and galvanized iron This Eyelet puncher applies to punching on bee hive frame. Easy to use & heavy duty Usage: Firstly, you can use a screwbolt to fix the puncher on the plywood Secondly, adjust the hole spacing with the ruler; then put the frame on the box which can be perforated. Specification: Size: approx. 18cm×4cm/ 7.09''×1.57'' Package Includes: 1× Hole Puncher Kit Set