Features: Reinforces and protects fiber optic splice. Clear sleeve for easy inspection and minimizing damage during installation. One piece design with hot for fusion insert for sealing against moisture and other contaminants. Different colors of hot for fusion insert for labeling and identification. RoHS compliant halogen free, environmentally friendly. Specifications: Product name: Single needle fiber optic heat shrinkable tube Steel needle material: 304 stainless steel Steel needle specifications: diameter 1.3mm, length 55mm Skin quality: Environmentally friendly PE material Working temperature: -55~105C Scope of application: optical fiber for fusion splicing Regular packing: 100pcs/pack Length size: approx. 45mm/1.77in, 60mm/2.36in(optional) Product color: transparent Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 100pcs x for Protection Sleeves