Is this the product to use in a glass/wood cabinet used to display antique hand mirrors? I'm having problems with rust and copper turning green.

for the rust it is ok. the website states that the product can be used with electronics, so it should be ok with copper. suggestions: buy some, store with polished penneys and see what happens after awhile. If you can keep the humidity in that cabinet low, you probably won't need the product

Is the capsule 8 inches long or the packaging?

It would have to be the packaging if as shown. Zerust also produces the VC2-1 in simple poly bag packaging.

how many for 50cal ammo box

One. Allow a little space for the vapor to circulate. If you are using an ammo box for ammo, don’t use this. But a dessicant. If using for metals, all good.

Manufacturer	Zerust Consumer Products LLC
Part Number	VC2-1/VC2-1/2-1
Item Weight	0.704 ounces
Product Dimensions	1 x 3.5 x 8 inches
Country of Origin	China
Item model number	VC2-1/VC2-1/2-1
Is Discontinued By Manufacturer	No
Color	Yellow
Shape	Rectangular
Item Package Quantity	1
Measurement System	Metric
Included Components	1 pieces
Batteries Included?	No
Batteries Required?	No

VC2-1/VC2-1/2-1 Rust Preventing Vapor Capsule, Yellow

Description

Specifications

Common Questions