Keep your gobo crisp and flat in Source Fourstyle ellipsoidals with a B-size pattern holder. This is the simple accessory you want on any corporate, concert, or theatrical show where clean logo projection and breakup patterns matter. Works for most common metal B-size gobos and slides in/out fast during focus or changeovers. Includes (1) B-size metal gobo/pattern holder (manufacturer may vary based on inventory) Notes B-size is commonly used for full-size Source Fourstyle fixtures. Designed for metal gobos. If youre using glass patterns, request a glass gobo holder. Minor dimensional differences can exist between brands; fit is intended for Source Four/S4-compatible ellipsoidals. Optional Add-Ons Custom steel gobo (logo/monogram) B-size glass gobo holder (for glass patterns) Source Four / ellipsoidal fixture package (lamp, clamp, safety, gel frame) On-site focus/aim support (labor) Specs Format: B-size (metal gobo) Typical holder width: ~3-11/16 in Typical aperture/opening: ~2-3/4 in Construction: metal sandwich style with pull/handle (varies by manufacturer) Key Features B-size compatibility for Source Fourstyle ellipsoidals Sandwich/heat-sink style helps reduce warping and extends gobo life Pull/handle for safer handling during hot changeovers Applications Logo projection, monograms, stage texture/breakups, corporate branding, theatrical specials, backdrop gobos Manufacturer Link https://www.citytheatrical.com/products/beam-control/accessories/sandwich-holder?utm_source=chatgpt.com ( https://www.citytheatrical.com/products/beam-control/accessories/sandwich-holder?utm_source=chatgpt.com )