Specifications:
1. Material Type
MDF (Medium Density Fiberboard)
ABS Plastic
Polypropylene
Rubber
Metal (less common, for heavy-duty setups)
2. Thickness Options
12 mm
18 mm
20 mm
25 mm
30 mm
(Varies based on speaker depth and door clearance)
3. Inner Diameter (ID)
Based on speaker size:
5.25″ speaker (?130 mm ID)
6.5″ / 6.75″ speaker (?160?70 mm ID)
6×9″ oval speaker (custom oval ID)
4. Outer Diameter (OD)
Depends on door/slot size
Typically 180?00 mm for 6.5″ speakers
110?60 mm for smaller speakers
5. Height / Spacer Depth
10 mm ?35 mm depending on model
Used to prevent magnet touching the window channel.
6. Mounting Hole Pattern
4-hole or 6-hole design
Universal or vehicle-specific (Maruti, Hyundai, Tata, Toyota, VW etc.)
Pre-drilled or customizable holes
7. Fit Type
Universal Fit
Car-Specific Fit
Example: Swift, Baleno, i20, Creta, Nexon, Punch, Innova, etc.
8. Shape Options
Round (most common)
Oval (6×9″)
Vehicle-specific contoured shape
9. Coating / Finish
Waterproof coating (for MDF)
Textured ABS finish
Anti-vibration rubberized coat
10. Additional Features
Integrated foam sealing gasket
Anti-vibration damping layer
Door speaker rod compatibility
Wiring slots or cable space
Stackable design for extra depth.