Jaja ultra black cardboard filters x 1 . leading brand in holland for filters and rolling papers this jaja cardboard filter book contains 31 boxes or tips. . of good quality and at a low price the filters of the jaja brand which is pronounced "yaya" in the netherlands can only bring you complete satisfaction. as its slogan says: "jaja paper we know that you want". . ideal for rolling with short sheets. not perforated so you can choose how to roll it in "o" or "w". thickness: 170 gsm. easy to take from the package since only glued on one end. filters made in the netherlands. . - dimensions: . the filter: length x width (mm) 36 x 18 mm.