Check the listing for details. Guitar String Stretcher - Make New Stay In Tune Instantly Guitar.... Condition: New. Listed at 12.92 USD. Guitar String Stretcher - Make New String Stay In Tune Instantly Guitar Tuning Improvement Device for Acoustic Electric Guitar, Bass Product Details Item Weight: 8 ounces Product Dimensions: 6.5 x 1.18 x 0.39 inches Body Material: Plastic Top Material: plastic Number of Strings: 6 Guitar Bridge System: Tune-O-Matic Brand: TUOREN Top Material Type: plastic Hand Orientation: Right Product Dimensions: 6.5"L x 1.1"W x 0.4"H Manufacturer: TUOREN String stretcher is one of the must-have tools among guitar accessories and gear for every beginner or professional musician. This product is much more time and effort saving than conventional way to stretch the strings with hand. Feature curved handle design, which provide you with a comfortable experience to use; The size fits most of people's hand. Made of high-quality light weight materials. Also compatible with other musical instruments such as Ukulele,Acoustic Guitar,Electric Guitar. Size: 16.5*3*1 cm / 6.5*1.1*0.4 inch ; Weight: 45 g. You can Carry it everywhere in your gig bag or case. The guitar tool is easy to operate and can complete the work in a short time. It is a choice that you should not miss if you love music. can easily meet your performance needs, and bid farewell to the trouble of finding professionals to adjust time and money! How To Tune 1) Change your strings and tune guitar. 2) Starting at the bridge, insert the string in the front groove followed by the back groove, which we call the "heel". 3) Holding the tool, gently lean your hand back so the string at the heel is parallel with the other string. 4) Don't pull "up" too high or drag the heel on the fret board. 5) Keeping the string at the heel parallel with the other strings, slide the tool along the string toward the nut (the tool should go as far as the first fret). Then, pull it back to the bridge. 6) Tune and repeat this procedure - we recommend doing this twice. Sometimes a third stretch is required, usually with thicker gauge strings. CAUTION: Repeating this procedure more than four times can result in overstretching the strings.