Ceramic soldering boards are an Perfect surface to do all types of soldering and annealing on. Ceramic is a really good material for distributing heat, as the surface both reflects and absorbs heat. Ceramic Honey Combs are great for beginners, because they're so versatile, and also quite durable. They're also easy to clean and resurface with sandpaper. Charcoal block, Magnesium and Firebrick are not Perfect for beginners.Nice for use , working , office as you wish each piece in the soldering kit for jewelry comes in the Perfect size for effective use; The honeycomb ceramic soldering block measures 5.28 x 3.66 x 0.51 inches, an optimal size providing adequate working surface; Both the copper tong and reverse tweezers, at about 8.27 inches and 6.3 inches respectively, Perfect for easy handling Colour:White & Silver Material:Metal Size:soldering block about:13.4x9.3x1.3cm Package Contents: 2 * ceramic soldering boards 1 * copper tong 3 * reverse tweezers(1 straight soldering tweezer, and 2 tweezers with different angles) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.