Bone Collection Maru Penguin Stylus Pen - Retail Packaging - Black Innovative Design Consists of a Stylus, a Ballpoint Pen and Jack Plug Ear Cap.Pen Cap Serves as a Stylus. Jack Protector Compatible with all 3.5mm Jack Devices. 100% Degradable, Washable Silicone Adopted. Innovative Design Consists of a Stylus, a Ballpoint Pen and Jack Plug Ear Cap Serves as a Stylus. Jack Protector Compatible with all 3.5mm Jack Devices. 100% Degradable, Washable Silicone Adopted.