This comes in a 100ml can, with a brush in the cap. This is the real thing, a thick goopy substance that's designed to fix tears and holes in neoprene.

Directions: Shake well before using. Apply cement on both edges of the damaged area with an applicator brush. Allow the first coat to dry for 5 minutes. Apply a second coat and allow to dry for 10 minutes. Press together firmly for long-lasting repairs. Make sure you keep a window open!