This is an acoustic guitar sound hole cover. Made of premium wood, the sound hole cover is durable for lasting use. Creative hollow design improves your guitar’s appearance. It can help to avoid and control feedback when playing the guitar. It’s a perfect guitar accessory for professional or personal use. You can mount it on 40/ 41 inch acoustic folk guitar effortlessly. Feature - Reduces feedback and low end for the folk classic guitar in live amplified settings. - Improve the looks of your guitar beautiful hollow pattern. - covers the insert edge, to your guitar. - Easy to install and remove. Compatible with sound hole in diameter 98-102mm. - Can restore the sound hole piano sound field, while effectively suppressing a caused by bass. - Excellent guitar accessory for any guitarist. You can mount it on 40/ 41 inch acoustic folk guitar effortlessly. Specifications - Compatiblity: 40’’ / 41" Acoustic Guitar - Material: Wood + Sponge - Color: Deep yellow - Material: Wood. - Size: Approx. 11.3 x 11.3 x 0.8 cm / 4.4 x 4.4 x 0.31inch ( W x H). - Compatible sound hole size: Dia 98-102mm. Warm tips 1.This sound hole cover is not suitable for guitars whose fretboard has reached the sound hole. 2.The back plate of the sound hole cover is removable. With the back plate, the sound hole cover works as a ; without the back plate, the sound hole cover is a good decoration to your guitar. If the back plate often falls off when it works as a , you can use a side tape to fix it. 3.The guitar showed in the picture is not included. 4: Please note that due to lighting and monitors, the items colours may be slightly on the error with the pictures. We ensure that we provide the style and the picture is the same. Thank you very much for your understanding. Package list: 2 x Guitar Hole Sound Cover