additional multiple product variant as check box?

[marvays]

hi.
i must make product vith multiple custom fields as check box. can i make it, but know anyone plugin for this?

example:
i have product 1 = price 100,-
i have custom fields for this:
- 1 year warranty + 10,-
- 3 year warranty + 20,-
- special service + 15,-
- qouick delivery + 5,-

. . . . . and the user may only choose, or any combination thereof.

[balai]

Custom Fields For All
https://breakdesigns.net/extensions/customfields-for-all