Description: 【Function】: Different sizes of sewing thread spool caps are designed to fit different spools, and the spool is held in place by the spool cap to the machine so it doesn't jump during sewing. 【3 Sizes Available】: These replacement spool caps come in 3 different sizes, the small size is approximately 0.98 inches/25mm, medium size is about 1.18 inches/30mm, large size is about 1.57 inches/40mm, you can choose the size according to your actual needs, it can fit the spool correctly. 【Quality Material】: Sewing Machine Spool Pin Caps are made of high quality material, sturdy and durable, can be used for a long time. 【Prevent Thread From Getting Caught】: Use the spool cap to prevent the thread from entering the cutting edge of the spool, thereby preventing thread jams, broken pins, skipped stitches, etc. from damaging your precious sewing machine. 【Wide Compatibility】: Our small medium large replacement spool caps are widely fit for NX2000, , , Pacesetter, NX200LE, NX200QE, , , , NX400LE, Pacesetter, NX400000 Pacesetter, Pacesetter, NX40 Q, 00QE, NX450, NX450Q, , NX6000, , NX800, PC210, PC210PRW, PC420, PC420PRW, PE450, PE525, PE540D, PE700000000, PE700 II, PE750D, PE770, PE750D, PE780D, RS240, RS250, RS260, SB3129 Simplicity, SB7050E, SB7500, SE1800, SE270D, SE 350, SE425, SM 6500PRW/S, , SQ9050, XL2120, XL2121, XL2130, XL2140, XL2150, XL2220, XL2230, XL2240, XL2250, XL2600I, XL2610, XL2620, XL3500 00I, 500T, XL3510, XL3520, XL3600, XL3750, XL3750FS, XL3800, XR 6600, XR 7700, XR9000, XR9500PRW Package Includes: 3 Embroidery Machine Spool Caps Note: Please allow slightly errors due to manual measurement and different monitors.