Backrest of delivery bed can be adjusted manually. It is consists of two parts which can be used together or separetely.
a:2:{i:0;a:2:{s:4:"name";s:12:"Application:";s:3:"val";s:8:"delivery";}i:1;a:2:{s:4:"name";s:19:"Number of sections:";s:3:"val";s:10:"3 sections";}}