Thank you for viewing. This is a listing for a 46g (1 piece) sub-weight for the DENON DA-305 tonearm. ※ The main weight and measuring device in the images are not included. ◆ Size: See image. The inner diameter matches the outer diameter of the original weight. ◆ Materials: Sub-weight: SUS304 Rotation stopper: Brass (C3604) ※ Brass screws with flat tips that are gentle on the shaft. Easy-to-use slotted screws. ※ Non-magnetic materials suitable for audio are used. Confirmation is required for items without material specifications. ◆ Condition: See image. Due to the manufacturing process, there may be lathe marks and chuck scratches. Please understand. ◆ How to use: When the cartridge weight + shell weight is heavy and zero balance cannot be achieved, attach it over the main weight to balance it. There are two rotation stopper holes, so you can rotate the main weight's rotation stopper by removing one side (requires a precision screwdriver). Use for heavy-weight cartridges (Ortofon SPU) etc. Check the stylus pressure with a precision measuring device. ※ This item expands the selection of cartridges and shells. ※ Zero balance is not necessarily guaranteed. ◆ Included: Main body, rotation stopper (M4 screws x 2) Protective tape ※ Measuring device is not included. If you do not have a sub-weight, please take this opportunity to try it.