Oh, ok. Cool. I have another question, i have always been trying containers with twist seals or caps. But my problem was that if i had the engine and servo hooked in there i have all these problems with the shafts. Because when i try to seal it by twisting the caps back on i end up twisting the motorshaft and wires and i get it jumbled up. How do you make a sealable cap where you just "pop" it in. Like pushing it on after you get the shaft and pushrod through there tubes. Like the clear WTC with there pop seals with O-rings on em. But a homemade version.