What are you expecting?
What size critters are your bringing in? Those enclosures look kinda large...T. albopilosum (the fluffy Nicaraguan one)
B. auratum
G. pulchra
G. pulchripes
C. Cyaneopubescens
They are slings and will vary in size. Expecting them to be between a half inch and an inch. The enclosures are little larger than the size of the enclosures Fear Not sell in their complete packages with slings. A little longer but about the same width and height. They will work well and be good for several molts before they will need adult size enclosures. the long ones are approx. 4.5wx4.75hx9l and will be filled halfway or more with substrate.What size critters are your bringing in? Those enclosures look kinda large...
Also, where did you get them, Container Store?
They are small. It is the same size drillbit I used for my .5" Vagans, Boehmei, and versicolor. The Versicolor actually might have been smaller than a half inch at the time.If the slings are as small as half an inch, how big are the drilled holes? Slings can fit through VERY small holes. I learnt the hard way, having once lost a sling through what I thought was a suitably small hole.