This handle was modelled after the official Yeti Rambler 20 oz Tumbler Handle from this link, YETI Rambler 20 oz Tumbler Handle | Sport Chek. It has a slightly loose fit so that users can add electrical tape to the inside of the rambler to make a snug fit with the 20oz Yeti Rambler, YETI Rambler 591 mL Tumbler With MagSlider Lid. Print with at least 3 perimeters, around 20-25% infill, support on build plate with any material you want (PLA, PETG, etc.). Enjoy!