Zig Memory Glue Pens make it easy to apply adhesive to exactly where you would like it. The glue is Blue when wet but turns clear when dry. The glue also has a 2 way system. When bonding two surfaces with the wet glue it will give a permanent bond. Alternatively applying the glue to one surface and allowing to dry will create a temporary bond. The glue is suitable for paper. Pens should be store horizontally when not in use. 4mm Chisel Tip. RRP £5.50.