What's in the box:

KKmoon Stainless Steel Soldering Tip Cleaner Wire-Type Soldering Iron Tip Cleaner Solder Tip Cleaning Wire Sponge with Holder (Black)

The solder tip cleaning wire sponge helps to remove oxides and excess solder to preserve tip life and enable clean, precise soldering.

Features:
Used to remove excess solder from the tip, cleans better than conventional sponges.
No water required, won't drop the temperature of the tip or cause tin sweats.
Hard enough to remove debris and some corrosion without damaging the tip.
Cleaner ball measures 2.75 by 1.77 inches, made of specially treated stainless steel.
Comes with a detachable metal holder for the tip-cleaning wire.

Specifications:
Material: Stainless Steel
Color: Black / Gold / Silver (optional)
Cleaner Ball Size: 7*4.5cm / 2.75*1.77in
Cleaner Ball Weight: 20g / 0.7oz
Case Size: 6.6*7cm / 2.59*2.75in (for black and gold), 6.6*4.5cm / 2.59*1.77in (for silver)
Item Weight: 110g / 3.88oz
Package Size: 6.6*6.6*7cm / 2.59*2.59*2.75in
Package Weight: 113g / 3.98oz

Packing List:
1 * Solder Tip Cleaner with Case