This is something that i never used when i bought it from the previous owner. Always just used the Pyrex Cups. Looking to trade for crappie / trout molds (trout worm, fry, stinger mayfly ect). Let me know what you have. Link to the system (not mine) https://youtu.be/Hfor5iFutEM agarcia@optimataxrelief.com 714-868-9317