Bohoray Large Syringe 200 ml + 10 ml, Reusable Liquid Syringe with Catheter, Plastic Syringe Dosing Syringe with Cleaning Brush for Scientific Laboratories, Garden Watering, Industry 200ml 1 sold2024 Classroom Chime: Clear "Ding" sound

Classroom Chime: Clear "Ding" sound can effectively concentrate students' attention

make the phone screen larger

support VHF or UHF dual working frequency

The color of the screw chrome

high temperature resistance and strong power load capacity

Bohoray Large Syringe 200 ml + 10 ml, Reusable Liquid Syringe with Catheter, Plastic Syringe Dosing Syringe with Cleaning Brush for Scientific Laboratories, Garden Watering, Industry 200ml 1 sold2024 Classroom Chime: Clear "Ding" soundBohoray Large Syringe 200 ml + 10 ml, Reusable Liquid Syringe with Catheter, Plastic Syringe Dosing Syringe with Cleaning Brush for Scientific Laboratories, Garden Watering, Industry Product Features Robust materials: the syringe is made of sturdy polypropylene plastic and rubber material. Heavy duty polypropylene syringes are sturdy and durable. Rubber rings can be easily stretched and compressed. Sealing: the injection moulding insert consists of a