Primos Lip Service Elk Call -Lip Service drives Bulls crazy. It is a simple sliding note that has the high pitch of cows and calves. The Lip Service gets its guts from our famous "Hoochie MAMA" but can be manipulated to get varying pitches proven to call Bull Elk in close. This call is easy to manipulate and can be carried in a shirt pocket. Good things truly come in small packages. Accurate Estrus Cow CallCompact fits in Shirt Pocket