Manual projection Screen /Wall mounted hanging screen for projector with self-lock

Manual projection Screen /Wall mounted hanging screen for projector with self-lock                      Features: 1,Ideal for classroom or small to medium sized groups
2,Easy to operate.No extra accessories needed
3,Self-locking device for reliable and safe operation
4,Convenient to pull and extend,easy to be adjusted to any interval to fit variety of projection formats
5,Available in cailing mount and wall mount Views:       Details: Package: Produce Procedure:                    About us:                   Certificates: