Outdoor Hunting Lab Crankin Crystal with Dymondwood Striker2 IN 1 TURKEY CALL This double sided glass and slate pot call is made with a glass top surface and an open slate on the back set in a lifetime guaranteed plastic pot making it one of the most versatile calls you can put in your vest WIDE RANGE OF SOUNDS With its glass and slate surfaces, our Crankin Crystal turkey caller covers both loud and soft calling needs. The slate surface offers low, soft clucks and purrs while the glass surface delivers loud,