Thermoplastic non-scuff exterior with aluminum flanged edges, tightly blocked interior, no space for shoulder rest. Black plush lining glued to interior blocking. 3.6 lbs. 

This model (105U) is made in the USA - for the non-USA version, see item 105.

Interior:

4/4: Total Length - 23.5" | Body - 15" | Upper Bout - 6.75" | Lower Bout - 8.5"  

3/4: Total Length - 22.5" | Body - 14" | Upper Bout - 6.5" | Lower Bout - 8.1"  

1/2: Total Length - 20.5" | Body - 13" | Upper Bout - 6" | Lower Bout - 8"  

1/4: Total Length - 19" | Body - 12" | Upper Bout - 5.5" | Lower Bout - 6.75"  

Exterior:

4/4: 31" x 10.6" x 5.25"

3/4: 28.5" x 10.6" x 4.6"

1/2: 26" x 10" x 4.5"

1/4: 25" x 8.5" x 4.5"