Tubeless tape 24mm x 55m. Enough for 6 - 7 sets of 700c/29” wheels. We recommend two wraps per wheel (one wrap for low-pressure tires is sufficient but we’re recommending two wraps for tire versatility). We know this may be more tape than you need right now, but you’ll be set for future wheels.
Warning: if not done correctly, can cause sudden loss of pressure
If you are not sure, have your local bike shop do it