Baby health and saftey

Where can i buy the metal track like you see at all reptile shops where two pieces of glass slide sideways.?

I am making a custom enclosure for my baby black throat monitor. I am using an old cabinet with a front opening of 44 in by 22 in. I am looking for the metal track I saw at a reptile shop near me; where there are two pieces of glass and they slide both directions and have a small key lock. Please help, I’ve looked everywhere.

Here is a few links for various ones.

http://www.bizrate.com/home-hardware/oid851442595.html

http://www.glassvanguard.com/product/4931/crl-showcase-upper-track-with-plastic-liner/11724/D3100A/crl-satin-anodized-aluminum-upper-track-extrusion–12-ft-long-D3100A.htm?src=froogle

http://www.amazon.com/dp/B0012J334I/ref=asc_df_B0012J334I1023270?smid=A3980GNRT360TO&tag=shopzilla_rev_275-20&linkCode=asn&creative=380341&creativeASIN=B0012J334I

http://www.amazon.com/dp/B0012IZCHA/ref=asc_df_B0012IZCHA1023284?smid=A3980GNRT360TO&tag=shopzilla_mp_1200-20&linkCode=asn&creative=380341&creativeASIN=B0012IZCHA

Watkins Cabinets Slide Show