These fiber sleeve core spare ceramic inserts and metal heads are designed for versatile use. They are suitable for most fiber cable testers and red light pens, making them an essential accessory for fiber optic testing and maintenance.

Specification:
Material: Ceramic Core, Metal
Total Size: 9 x 8mm/ 0.36 x 0.31"(L*D), 7 x 3.6mm / 0.28 x 0.14"(L*D)
Package Content: 10 x Ceramic Core, 10 x Metal Heads

Advantage:
Made from quality materials, these inserts and heads are highly durable and resistant to breakage. They ensure a reliable and extended lifespan, allowing for consistent performance during fiber optic operations.

Instruction:
With improved design and construction, these inserts and heads provide easier installation compared to traditional options. This simplifies the replacement process and reduces the risk of damage or improper connections.

NOTE: Avoid using excessive force to prevent any potential damage to the equipment.