Andis Drive Assembly Lever Replacement Blade for Clippers: This blade drive assembly lever is the clear plastic frame with a black lever that moves the blade back and forth. It should be replaced when blades are no longer cutting sharply. Fits all compatible Andis clippers AG, AGC, AGR, AGRC, AGR+, AGCL, BG, BGR, BGR+, BGRC, BGCL, MBG and MBG2 Clippers.