Long Verson Maestro Vibrola Tremolo Fit SG or LP for left handed from Korea Chrome All screw diameter:4mm It is same measurement with Genuine and pls check it as above picture shown. Payment: We only accept Paypal. Shipping: Once payment has been confirmed, your item will be shipped within 2-3 business days.After the packages are shipped, the seller will provide the tracking number to the buyer. Normally it takes about 3-8days to arrive. Shippment: If you can are from South American or other, Pls contact to us . Once payment has been confirmed, your item will be shipped within 2-3 business days.After the packages are shipped, the seller will provide the tracking number to the buyer. Normally it takes about 3-8days to arrive. Terms of Sale: If you are not happy with any item, please contact us within 14 days of receipt so that we can arrange for an exchange or refund. After getting the returned item,we will refund the customer at the item?s price.You will pay a 25% restocking fee. Contact us : We are always willing to help and if you need any advice pls feel free to email. The buyer's responsibility to pay customs fees, duties, import taxes, and related charges