This lightline has a 50 x 1.2mm slit with a 18.2mm diameter mounting end.
Also available is a Manfrotto - Bogen adjustable variable friction Pro Stand 244/KB15.
This Item is used - in excellent condition - with 90 day Warranty
Actual pictures of guide and stand.
Price $130.00 Fostec lightline guide with Pro Stand
Price $85.00 Fostec lightline guide only
Price $55.00 Manfrotto Pro Stand only

Note: DCR II light source is shown for illustration only