3M Scotchpro 3750 clear box sealing kit comes in a 48 mm width, 50 m length, uses a hot melt adhesive and is packaged 4 rolls per pack. Provides a tensile strength of 47 lb/in. When purchasing this product, consider the thickness. The variances in thickness often make an important difference in proper performance. This box sealing kit has a 3.1 mil thickness.