OTK FIT GUIDE

FIND YOUR FIT

Choose the card format you collect and instantly match it with the OTK protector built for that size.

CHOOSE YOUR FORMAT SHOP ALL

STEP 01

CHECK YOUR CARD COMPATIBILITY

Find your card series below, then choose the matching OTK protector.

CARD TYPE / SERIES MAINLINE6.5 × 4.25 in PREMIUM6.5 × 5.25 in TEAM TRANSPORT6.5 × 8.0 in 2-CAR PACK6.5 × 8.35 in
Hot Wheels / Matchbox Mainline✓×××
Treasure Hunt / Super Treasure Hunt✓×××
Hot Wheels Premium Boulevard×✓××
Hot Wheels Premium Car Culture×✓××
Hot Wheels Premium Pop Culture×✓××
Hot Wheels Premium Fast & Furious×✓××
Hot Wheels Premium Retro Entertainment×✓××
Hot Wheels Team Transport××✓×
Hot Wheels Premium Car Culture 2-Packs×××✓

STEP 02

CHOOSE YOUR CARD TYPE

Select the format that matches your collection. The recommendation below updates instantly.

CHOOSE YOUR CARD TYPE
Mainline Protector

YOUR RECOMMENDED FIT

Mainline Protector

Built for standard Mainline / Matchbox card formats.

MAXIMUM CARD SIZE
6.5 × 4.25 in
MATERIAL
0.8 mm / 30 mil PET
PROTECTION TYPE
Clear clamshell
FIT
Standard carded die-cast

AVAILABLE PACKS

  • 25-Pack
  • 50-Pack
SHOP MAINLINE
Premium Protector

YOUR RECOMMENDED FIT

Premium Protector

Built for wider Premium / Car Culture card formats.

MAXIMUM CARD SIZE
6.5 × 5.25 in
MATERIAL
0.8 mm / 30 mil PET
PROTECTION TYPE
Clear clamshell
FIT
Premium / Car Culture

AVAILABLE PACKS

  • 5-Pack
  • 10-Pack
  • 60-Pack
SHOP PREMIUM
Team Transport Protector

YOUR RECOMMENDED FIT

Team Transport Protector

Built for Team Transport carded sets.

MAXIMUM CARD SIZE
6.5 × 8.0 in
MATERIAL
0.8 mm / 30 mil PET
PROTECTION TYPE
Clear clamshell
FIT
Team Transport sets

AVAILABLE PACKS

  • 5-Pack
  • 10-Pack
  • 20-Pack
SHOP TEAM TRANSPORT
2-Car Pack Protector

YOUR RECOMMENDED FIT

2-Car Pack Protector

Built for Twin Pack / 2-Car Pack card formats.

MAXIMUM CARD SIZE
6.5 × 8.35 in
MATERIAL
0.8 mm / 30 mil PET
PROTECTION TYPE
Clear clamshell
FIT
Twin Pack / 2-Car Pack

AVAILABLE PACKS

  • 5-Pack
  • 10-Pack
  • 15-Pack
SHOP 2-CAR PACK

WHY OTK

BUILT TO PROTECT YOUR COLLECTION

0.8 MM / 30 MIL PET

Rigid clear PET built for collector-grade protection.

HIGH-CLARITY PET

Designed to keep the card art and die-cast vehicle clearly visible.

SNAP-LOCK DESIGN

Secure clamshell closure with easy access when needed.

COLLECTOR-FOCUSED

Built around the card formats collectors actually store and display.

STILL NOT SURE?

BROWSE EVERY PROTECTOR

Compare all protector types and available pack sizes on the Shop All page.

SHOP ALL PROTECTORS