The hardest wood in the whole world. This guitar slide is hand made from Irionwood at the Magicwood shops in East Texas. Natural oils in this wood give a nice glide along the strings. Each slide is unique and one of a kind made  from choice select Ironwood. For a warmer tone. The tonal qualities are outstanding. The one in the photo is the one you will receive. Measures: 2 1/2" long {64mm}-3/8" wide {18mm} and an inner diameter of 3/4" {19mm}. Never tried a slide before, C,mon  heres your chance.. Shipping is free to U.S customers.$15.00 over seas. Thanks.