O'kami Mini4WD Rollers
  • 16 Plastic Roller with Bearing 18mm $9.50
  • 17 Plastic Roller with Bearing 19mm $9.50
  • 18 Plastic Roller with Bearing 20mm $9.75
  • 19 Plastic Roller with Bearing 21mm $11.95
  • 21 Plastic Roller 14mm & 16mm w/bearing (For Stabilizer) $10.50
  • 192 18mm Plastic Roller w/o bearings $16.95 (8 per pak, white plastic, solid)
  • 193 19mm Plastic Roller w/o bearings $16.95 (8 per pak, white plastic, solid)
  • 194 20mm Plastic Roller w/o bearings $16.95 (8 per pak, white plastic, solid)
  • 195 21mm Plastic Roller w/o bearings $16.95 (8 per pak, white plastic, solid)
  • 313 21.0MM Delrin Roller w/o bearings $16.95 (10 per pak, black delrin, four holes)
  • 323 21.0MM Delrin Roller w/o bearings $16.95 (10 per pak, white delrin, four holes)
  • 314 21.5MM Delrin Roller w/o bearings $16.95 (10 per pak, white delrin, four holes)
  • 315 22.0MM Delrin Roller w/o bearings $16.95 (10 per pak, black delrin, four holes)
  • 316 22.5MM Delrin Roller w/o bearings $16.95 (10 per pak, black delrin, four holes)
  • 317 23.0MM Delrin Roller w/o bearings $16.95 (10 per pak, black delrin, four holes)
  • 327 23.0MM Delrin Roller w/o bearings $16.95 (10 per pak, white delrin, four holes)

Delrin rollers are stronger than plastic rollers, however their sharp edges tend to wear out faster than plastic.