Height of the 15mm rod clamp is adjustable up and down.
eBay
SmallRig Matte Box with Adjustable Clamp and VND Kit 67-82mm Ajustable Clamp Design Universal Matte Box CPL VND Dual-Filter 4411
Aliexpress UK
We have everything tested and checked before being advertised for sale. Good condition. We will be responsible for all the loss.
eBay
TILTA MB-T16-A 4x5.65" Mirage Matte Box Mirage Motorized VND Kit A Filter Frame Mirage Matte Box for DSLR/Mirrorless Camera
Aliexpress UK
What's more, the matte box has space for side and rail plate extensions, giving you more options. 【Compatible with 4" x 5.65" square filters】The matte box with safety lock has a rail for two 4"x 5.65" (4mm thick) square filters.
eBay
For 80mm Matte Box or 77mm lens filter etc. Step Up Ring Matte Box Adapter 49/52/55/58/60/62/67/72/77/82mm-77mm (80mm O.D)
Aliexpress UK
· Dual CPL&VND functionality with magnetic quick release attachment for secure and reliable operation. · Hard stop and light transmission limit technologies eliminate VND cross patterns. · Modular design for swift two-step assembly. · ≥16mm focal length with no vignetting.
eBay
TILTA MB-T16 4x5.65" Mirage Matte Box Filter Frame Mirage Matte Box for DSLR/Mirrorless Cameras
Aliexpress UK
Raven TLS A10 Matte Box with Filters, used(FMP60040NRSH). The TLS Raven matte box is beautifully engineered and designed for use with almost all lenses including super-wide models such as the Canon HJ11 and HJ14.
eBay
SmallRig Lens Adapter Ring Kit for Matte Box 3196,with Filter Thread for CPL Filter ND Filter, 52mm/ 55mm/ 58mm/ 62mm/ 86-95mm
Aliexpress UK
Adjustable Top flag, 3 x trays. 80mm clamp back adaptor included.
eBay
Matte Box Filter Adapter Step Up Front Ring 60/72/77/82/86mm-86mm For Matte Adapter Step Up Ring
Aliexpress UK
【Two Stackable Filter Trays】 Two filter trays fit 4" x 5.65" square rectangular filters (not included). Quickly stack these filter trays by sliding them into the bottom slots or remove them by pushing the release quick buttons.
eBay
TILTA MB-T16-A 4x5.65" Filter Frame Mirage Matte Box Motorized Adjustable VND Filter kit For DSLR Mirrorless Camera
Aliexpress UK
SmallRig Multifunctional Modular Matte Box (Φ95mm) VND Kit 3645 1. Modular design for quick disassembly in seconds 2. Supports ≥16mmfocal length, no vignetting 3. Removable and excellent VND filter system 4. Includes various accessories.
eBay
NEEWER 2 Pack ND0.9/1.8 Square ND Filter, 4"x5.65" Dual Sided 30 Multi Nano Coated Cinema Neutral Density Filter for Matte Box
Aliexpress UK