No price negotiations ❌ No bulk purchase discounts ❌ Please refrain from individual negotiations. You can buy directly without any rejection comments. I try to ship within 24 hours, so I will not comment until the item is shipped. Thank you for your understanding. Set of 2 Purchased in the USA. Unused, deadstock knobs made of plastic. They are called "radio towers" because they resemble broadcast towers. A wonderful design not found in Japan. They are the type that uses a 1.5mm wrench to fix the grub screw from the side, so they fit both internal and external pots (wrench not included, please prepare one). Maximum outer diameter: approx. 28.6mm, height: approx. 15.6mm, shaft hole diameter: approx. 6.5mm. Use for repairs and customization of vacuum tube amplifiers, tube amplifiers, stereos, antique radios, audio equipment, guitar amplifiers, and effectors, as well as for dressing up bizarre guitars. The 5th image is a size reference image. The 6th & 7th images are reference images of installation examples. Shipping is by regular mail (no tracking number), so it may take some time for delivery (even in Kanagawa and surrounding areas, it may not arrive in 3 or 4 days). * If you let me know in the comment section before purchasing, you can change to "Click Post" with faster delivery and a tracking number for an additional 50 yen. Recycled materials are used for packaging.