Standard 1 gram pre-rolled cones are 109mm length. Different pre roll cone manufacturers have different sized filter tips, but we use a 26mm filter tip on all our stock pre-rolled cones. All our pre-rolled cones are designed to fit perfectly in all standard knockboxes, so you never need to worry! One gram 109mm pre rolled cones are available in refined flax paper cones, unrefined flax paper pre roll cones, and hemp wrap blunt cones. If you are looking for a custom sized cone, we can make anything you can dream up - just contact us!