This product includes two spacers, which is the quantity needed to secure one selector. If you want to install them on all selector switches, you will need 2 for a Jazzmaster, 8 for a Jaguar, and 4 for a Mustang. If you need more than 4, please contact me via message. I will create a dedicated listing for you, adding 320 yen for every 2 spacers. Shipping will be via Mini Letter (standard non-registered mail, so there is no compensation. If you want compensation or tracking, I will send it via Yu-Pack with the shipping cost paid by the recipient. Please let me know.) I cannot offer discounts, so I will not respond to comments asking for them. Good news for those who are dissatisfied with the preset control switches and pickup selectors on Mustangs/Jaguars/Jazzmasters. These switches, which are constantly a problem due to being accidentally touched while playing, seem to have various solutions. Some people cut the wiring or cut off the switch knobs, but many users want to avoid modifications. This product is a spacer that can be attached to the switch. As shown in the photo, only the top of the switch will be visible, maintaining the sliding function while preventing accidental switching. No soldering is required, so it can be easily returned to its original state. The photos were taken with my Jaguar, but it works with all slide switches on Jazzmasters, Mustangs, etc. The photos use the Jazzmaster's preset switch, but it also fits the pickup selectors on Jaguars and Mustangs. It is designed for metric switches, so I cannot guarantee compatibility with USA-made switches.