The Costkatil Masters are designed to make specific cocktails with extreme ease at home or on the go. Each Cocktail Master has a jigger, knife and strainer, but the individual tools vary according to the needs of three specific cocktails; the martini, the margarita and the mojito. The Martini Master features a channel knife/zester and reamer.BPA-free plastic, stainless steel. Length 25 cm, width 10 cm, depth 4 cm. Hand wash recommended.