Gewoon prima.
"Een kleine introductie / handleiding hoe te installeren zou fijn zijn."

Keystone inserts can be placed in the empty keystones of various Desk Ups and Desk Ins. You can place 2 inserts per empty keystone, allowing for all combinations. Because the products have standard dimensions, the inserts can be easily installed for simple snap-in mounting. All inserts are available in white or black.
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