fit very well to the thumb and fingers of the angler

with the proprietary Alchemy Oil from Hedgehog Studio providing the perfect balance between oil and ball bearings

Material: Ultra-high-strength aluminum

We like to use it for our maintenance service on the ball bearings

Hedgehog Studio "Kattobi" Tuning Kit Kugellager | Daiwa Air BFS 1030 & 1030 5x11x4 | 3x10x4 fit very well to theWith the "Kattobi" Bearing Tuning Kit, you get a premium bearing set from Japan for your baitcasting reel. The kit includes 2 bearings with the bearing size 1030Air BFS (3mm x 10mm x 4mm). The small stainless steel balls are installed so precisely in the housing that they start to spin with the slightest weights. This makes the reel perform incredibly well, with an extremely high rotation speed on one hand and a very smooth operation on the other.