Duct Tape 2-Pack Optical Illusion/Grape Jelly 2-Pack of Optical Illusion/Grape Jelly patterned Duct Tape Just For Laughs Designer Duct Tape Neon, 1.88 inches by 20 yards. Excellent for crafting fun and imaginative projects. Heavy duty 9 mil thickness for easy and even tears. Strong adhesion to lots of surfaces like cloth, vinyl, leather, plastic, metal and laminates.