These are metric M3.5&M4 switch tips for EPI LP,This combination would fit most LP guitar in the current market.Of course, it is not 100% universal. It is recommended to compare the sizes before buying. M3.5 - common EPI made in Korea - switch lever diameter is 3.2-3.5mm or approx. 1/8inch M4.0 - common Chinese and Japanese switch - switch lever diameter is 3.7-4mm or approx. 5/32inch How to get the correct tip for your toggle switch? First you must know the thread type of your switch,second you must use a micrometer to measure the shaft diameter of your switch If you have EPI LP but you don't know the shaft diameter of the switches, this combination will be the right choice for your switches Colour:black/White/multicolor/Creamy white Material:plastic Size:0.8x1.5x0.6cm Package Contents: 10 x 3.5mm guitar switch tip 10 x 4mm guitar switch tip Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.