The rack was received within the stated deadline (Amazon: deadlines blameless). However the carton in which was the support was wrinkled (carrier!). At the functionality of this support, the manufacturer could make a small improvement which would increase the ergonomic by extending a few millimeters the two lower supports. This would allow better stability when positioning the mobile phone on the support before tightening the clamps 2. Except for this little incovenient Positioning before tightening the bracket fully met my expectations.