These Stable Plastic Tattoo Ink Caps feature a wide base preventing ink spillage - so no need for ink cap holders. Clear in colour these Non Spill Ink Caps are available in Small (10mm), Medium (12mm) & Large (14mm).XLarge(17mm) These Non Spill Tattoo Ink caps are also known as Ink Cups or Ink Pots and are available in bags of approx. 250, 500, 1000, 5000 & 10000 pieces.