RAM® Twist-Lock™ Dual Suction Cup Base with Socket Arm & Retention Knob
Ball Base Information
"RAM" Prefix Code
To provide lightweight strength and corrosion resistance, RAM is made of marine grade Aluminium with a black powder coated finish, stainless steel hardware and 'rubber balls' - 'RAM' products are stiffer and stronger than their 'RAP' variants and typically used in more rugged applications.
"RAP" Prefix Code
Many of our 'RAM' products are available in a 'RAP' - composite variant. Our composite 'RAP' products are generally designed for lighter duty applications where keeping the weight of the mount low is a priority.
RAM® BALL SIZES
The weight limits below are a guide only. All factors in a planned mounting configuration should be considered to choose the most suitable ball size.
The most common ball size applications:
B Size - Action Cameras, Phones and Small Tablets
C Size - Medium - Large Tablets in Heavier Duty Applications
D Size - Heavy and Rugged Tablets and Laptops in Commercial Applications
Please check with our technical team for advice.
![A chart of ball sizes](http://www.ram-mount.co.uk/cdn/shop/files/ball-arm-spec.jpg?v=1720434415&width=1200)
![](http://www.ram-mount.co.uk/cdn/shop/files/ball-arm-spec-vertical.jpg?v=1720613989&width=600)
Currently out of stock, maximum wait time will be 6 weeks.
The RAM-B-189B-201-ALA1-KRU consists of a double 3.3" twist lock suction cup base that is connected to the diamond base with 1" rubber ball. The suction cup is designed to have an extra strong hold on any smooth non-porous surface, but for best result, mount the suction cup on a glass or non-porous plastic surface. The ball on this base connects to the standard length double socket arm with retention knob. A single spring inside the arm opens the end sockets, allowing you to pivot the ball and socket connection. The knob extension allows for easy adjustment of the mount and prevents over loosening of the knob. This socket technology allows for almost infinite adjustment and perfect viewing angles.
hardware included
Assembly Hardware
suction size
(2) 3.3" Diameter Bases, Total Width 7.95"
socket to socket length
3"
ball size
B Size (1")
weight capacity
Standard Use: 2 lbs
Heavy-Duty Use: 1 lb
materials
Powder coated steel
Marine-grade aluminium
High strength composite
packaging type
Poly Bag
Weight
0.56 kg