For Ultimate Jigging 40mm Type II Knob Upgrade and Replacement, please carefully see below "Pictures" (click to enlarge) to show the installation process step by step.

Each Ultimate Jigging 40mm Type II Knob package comes with one "Silver Cup". However, there are three style Cups, S, NS and D, for customer to choose, which fit most Shimano and Daiwa middle sizes spinning or conventional reels. 

It is suitable for the following Reels:

• NS Cup fits on newest mid size Shimano '08~13 Models Sella 5000~10000 SW, New Saragosa SW 5000~10000 and Twinpower Reels with two Bearings O.D. Size 9mm/9mm.
• S Cup fits on Shimano Stella, Twinpower, old version Saragosa 4000~10000F and other Shimano Conventional Reels with Bearings O.D. Size 8mm/7mm.
• D Cup fits on mid size Daiwa Spinning or Conventional Reels with Bearings O.D. size 7mm/7mm

Cups and Bearings: (You can use your original Bearings/Sleeves that removed from your original knob, and follow the diagram instruction to install the 40mm Type II Knob.)

• D Cup - two 7x4x2.5 Bearings.
• S Cup - one 8x5x2.5 Bearing and one 7x4x2.5 Bearing.
• NS Cup - one 9x5x3 Bearing and one 9x4x4 Bearing.