Tamperla™ Tamper STICK! (Shortest) (For Btec and more)
This size was engineered to fit specifically Blendtec's most popular (normal size) containers Sometimes, it even fits other brands, such as Oster, Kitchen Aid, too!
For Blendtecs: It fits the lid in the photos! Which is a called a 'vented gripper lid'.
Don't have one? Don't worry, you can always buy one directly from Blendtec® or the link below!
You can get that exact lid needed directly from Blendtec for less than $10: Or visit DEI link below to purchase the lid for $9.95 + Free shipping. (External site, Lid pricing subject to change)
The WORLD'S BEST TAMPER STICK FOR BLENDERS, is a Tamperla™ Blender Stick