35 mm film canisters do jus fine homie... Im waitin to get paid so i could upgrade the motor. Ima stick wit HPI on that. Im not guna go all out. Im driftin on a small ***** budget. N there aint musch DIY involved. it took me like no more than ten minutes to size, cut, n fit the "tires". And yea that is all 4 n no i wasnt in a hurry. Its jus basic s#!+