Powerseal/Excell 7605K Bag Sealing Tape Dispenser: 1/2 in. wide Blue - Powerseal / Excell 7605K Bag Sealing Tape Dispenser is a tape dispenser/bag sealer with trimmer for tape up to 12mm wide (approximately 1/2 inch wide) on a 3-inch diameter core. The dispenser can be used to seal produce bags, bakery products, candy items, floral arrangements, industrial parts, newspapers and hardware. The opening at the top of the dispenser (where the bag is inserted) is approximately 5/16 inch wide. For rolls which are used in this dispenser please see the JVCC BST-22 and BST-24 Bag Sealing Tape products. Instructions for using bag sealing dispensers: Insert the dispenser's removable core into the core of the tape and then put it into the dispenser's core holder. Pull the tape over the top of the dispenser making sure that the adhesive side is facing UP. Twist the bag and pull it down through the top slot opening in the dispenser. Use the blade at the bottom of the dispenser to trim the bag.