STK-3A                   

Universal side rails
The bracket is made of 304 stainless steel, and the support arm is made of polyurethane material
Arm plate size: length 520*width 160*height 35mm

STK-3B

The bracket is made of 304 stainless steel,
The support arm is made of polyurethane material
Arm plate size: length 520*width 160*height 35mm
Support rod diameter φ14mm；

STK-3C

The bracket is made of 304 stainless steel, and the support arm is made of phenolic resin board and sponge PU. 
Arm board size: length 600*width 150*height 12mm. 
Arm board pad thickness: 65mm. Applicable side rail size: 28.9*9.5mm/30*8mm/25*10mm.

STK-3D

The bracket is made of 304 stainless steel, and the support arm is made of resin board and sponge PU. 
The arm board size: length 550*width 155*height 10mm.
The thickness of the arm board pad: 40mm. Applicable side rail size: 25*10mm/30*8mm.

STK-3E

Lying position armrest, can rotate 360 degrees, size 50*140*40mm

STK-3F

The bracket is made of 304 stainless steel, and the support arm is made of phenolic resin board and sponge PU
Arm board size: 520*150*10mm
Arm board pad thickness: 40mm
Support rod diameter φ14mm； 

STK-3G

The bracket is 304 stainless steel, the support arm is phenolic resin board, sponge PU
Arm board size: 600*150*40mm
Support rod diameter φ16mm；