Remixed specifically for the LockNLock Easy Essentials Rectangular Food Storage 18.1 cup found here and eSun spools. YMMV

Used Fusion 360 and Flashprint

You will need
608-2RS Ball Bearings x4
PC4-M10 Pneumatic Fitting x1
M5x8 socket head cap screws full thread x3
m5-0.8 hex nuts x3
Teflon Tubing for 1.75 mm filament - length your choice

Measurements are set to fit the narrow handle indentation in the side so that it can be facing either direction
.
Base Measurements:
x 144.27mm - Length
y 67.39 mm - width
z 24.96 mm - height

Reorient to print lying flat. No supports

I designed rollers without curves at the ends because the box is perfectly wide enough to fit the rolls and allow very little play, so I needed the roller to reach all the way across. I printed them with supports for the inside ledge for accuracy as the rollers fit the ball bearings snugly. No raft or brim. Print 2

The filament feed I used the file from GauthierBou. it just looks beautiful. Positioned right around the 7 cup mark, the angle is perfect to flow smoothly. When you burn the filament passthrough hole, be sure to do it at the same angle as the print or you'll experience drag.

I resized the silica lid to these dimensions for a snug fit. If you modify this, don't forget to measure for the lid.

Wide: 67.23mm
Length: 34.38

No changes to the passthrough. Print as is.