Bearings come in a nicely sealed tube for storing leftovers or disposing of old ones. Double-sided rubber seals. NAPA auto parts were $50 each for the same bearing that was $34 for 10 at the dealer. Same weight and dimensions as the OEM bearings on my Bad Boy ZTR mower. Heating (putting, then in the sun) and cooling (putting in the freezer) makes installation much easier!