Big Bang Theory Purr Purr Purr Pet CollarSoothe your pet with this calming Big Bang Theory pet collar! The Big Bang Theory Purr Purr Purr Pet Collar is a white, 1-inch wide nylon strap, adjustable in length. It has a stainless steel D ring and a seatbelt-style buckle. The buckle features the title logo for TV's The Big Bang Theory. The belt features images of a smiling Soft Kitty and the last phrase of the "Soft Kitty Song" from the show, "Purr, purr, purr!"