Stan&&';;s Original Rim Tape creates a durable and airtight seal between tubeless rims and tubeless tires, creating an ideal environment for tubeless sealant to remain liquid for as long as possible. The non-porous material protects the interior of alloy and carbon rims, in addition to their spokes and nipples, and a synthetic adhesive leaves zero residue behind once removed.As a general rule of thumb, we recommend selecting a tape 1-2mm wider than the interior width of your rim. One 10-meter roll will tape 4 x 29" rims or 5 x 27.5" rims One 50-meter roll will tape 20 x 29" rims or 25 x 27.5" rims Creates durable, airtight seal over spoke holes Completely non-porous vapor barrier seals rim interior from moisture Adhesive leaves no residue on rim, once removed Low friction surface helps tire beads slip into place For high pressure applications, 50 psi/3.5 bar and greater, we recommend 2 layers of the appropriate width rim tape be applied to handle the demands of higher air pressure. For low pressure applications, 50 psi/3.5 bar and lower, we recommend 1 layer of the appropriate width rim tape be applied for Tubeless Ready rims.