9 Tooth Roller Chain Sprocket B Type Hardened Teeth, 25 Chain Sigle Strand 1/4-Inch Pitch, 1/4" Bore Black Oxide C45 Carbon Steel with Fasten Screws for 04C Chain auspowers_batchfour High-quality materials: environmentally friendly iron

High-quality materials: environmentally friendly iron material

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Response time of 1 second in liquid for fast readings

9 inch smart phones and tablets

5V AAA battery 1x User's Manual 1x ERICKHILL Thermometer 2 x 1

9 Tooth Roller Chain Sprocket B Type Hardened Teeth, 25 Chain Sigle Strand 1/4-Inch Pitch, 1/4" Bore Black Oxide C45 Carbon Steel with Fasten Screws for 04C Chain auspowers_batchfour High-quality materials: environmentally friendly iron9 Tooth Roller Chain Sprocket B Type Hardened Teeth, 25 Chain Sigle Strand 1 4 Inch Pitch, 1 4" Bore Black Oxide C45 Carbon Steel with Fasten Screws for 04C Chain Product Features Size&Package1 4" pitch, 9 teeth, 6. 35mm round bore, more size refer to pics. Package include: 1 x Chain Sprocket, 2 x Set Screws. MaterialMade by c45 carbon steel, the tooth part high frequency quenching heat treatment, high hardness, wear resistance, long service life,