THESE WILL ONLY WORK ON 40oz Stanley and their dupe tumblers. PLEASE KEEP THIS IN MIND WHEN ORDERING. If you need them for 20/30oz Stanley or Dupe tumblers PLEASE SPECIFY IN NOTES WHEN ORDERING. No refunds will be given due to ordering the wrong size.
THESE WILL NOT FIT THE NEWEST TUMBLERS THAT HAVE BEEN RELEASED AFTER OCTOBER AS THE LIDS HAVE CHANGED AND HAVE NOT BEEN TESTED