The basics You're looking at a wooden edge slicker for burnishing the edges of your leather. Don't risk scraping your leather with imperfectly moulded plastic versions. The benefits This old favourite is great for slicking and smoothing the edges of your vegetable tanned leather. Works best with our range of burnishing gums. The uses Simply apply burnishing gum to the edge of your leather and run the groover of this slicker along the edge firmly and vigorously until the edge of your leather is smooth. The bottom line Measures 5.5cm x 1.1cm, the burnishing channel is 8mm at it's widest point, but tapers down to 3mm at the bottom of the channel.