Material:100% natural bamboo specification:48prongs, 64prongs,72prongs,80prongs.100prongs Logo:customizable shipping: by sea, by express, by air package:customizable delivery time:20-30working days after receive your advance payment and design USAGE: 1. Moist and soften the chasen with warm water 2. Place 1 Matcha Scoop of matcha into the bowl. For Usucha, thin tea, use 2 Chashaku of Matcha. For Koicha, thick tea, use 3 to 4. 3. Pour in about 80ml hot water (72C / 162F) 4. Run and stir the whisk by writing "W" quickly under the matcha and hot water, until there are no clumps and a fine froth developed on the top (about 10-15 seconds)