Usage Tips:Unresponsive Yoyo Bearings: Size C 6.35mm 12.7mm 4.762mm, designed to fit most unresponsive ball bearing yoyos, ensuring a smooth and stable performance for advanced tricks. Responsive Yoyo Bearings: Size C 6.35mm 12.7mm 3.175mm, perfect for most responsive ball bearing yoyos, offering a versatile and enjoyable yo-yo experience for all skill levels. Efficient Bearing Remover Tool: Sized at 68mm length and 6.38mm outer diameter, the tool can easily remove any size C bearing without damaging yoBearing Remover Tool: With a length of 68mm and an outer diameter of 6.35mm, the stainless steel bearing removal tool makes it easy to safely remove any Size C bearing without causing harm or damage to your yoyo. ur yoyo. An indispensable helper for your yoyo activities. Durable Polyester Yoyo Strings: Each string is approximately 113cm/44.4 inches long and can be easily adjusted. Made from Polyester, these strings are exceptionally durable and come in random colors Not accepting designation. material: metal Color: as shown Package Contents: 2 X 10 Ball Golden Unresponsive Yoyo Bearings 2 X U Type 10 Ball Unresponsive Yoyo Bearings 2 X Narrow C Responsive Yoyo Bearings 1 X Stainless Steel Bearing Removal Tool 6 X Polyester Yoyo Strings 4 X Responsive Silicone Pads 1 X portable bag 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.