Bone Collector Poplar Girl Friction Call. Don't let its small size turn you away tiny but loud made with a poplar pot and a Pennsylvania slate surface this call does it all. Paired with the Bone Collector Game Calls Hickory Striker this call does it all- cuts yelps and purrs. Specifications for Bone Collector Poplar Girl Friction Call: Manufacturer: Bone Collector Additional Features: No Weight: 0.36 kg Height: 1.5 in Length: 11 in Width: 7 in Package Contents: Bone Collector Poplar Girl Friction Call