Le-Glue and Learning Express Special - 100 unitsThanks for Partnering with Le Glue. You will receive 100 units of the 2 oz spout along with the 33 unit display box. Le Glue is a Non Permanent WATER RELEASABLE GLUE that's Strong, Non Toxic and won't damage your blocks. It is a water soluble adhesive designed to hold your plastic building blocks together. Le Glue works with all types of blocks including LEGO and Mega Bloks. Simply dip a block and stick it in place, it's that easy to use. Best of all;