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Transparnel TPU Back Case mpBLBERRI for IPHONE 13PROMAX 6.7inch BLB-331

Transparnel TPU Back Case for IPHONE 13PROMAX 6.7inch

Transparent TPU Back Case mpBLBERRI for IPHONE 13 PROMAX 6.7inch BLB-331

Designed in dimensions that you can use to protect your Apple iPhone 13 PROMAX.

This product covers the back and bumper strip of the phone completely (in 360 degrees). The camera lens and its flash are available with suitable grooves.

Glass-jelly Back Cover BLB-331 is a quality back cover or mobile back case with a classic design and beautiful appearance, which is made of the highest TPU and Glass materials.

About TPU

TPU stands for Thermoplastic Polyurethane. Extracted from plastic in 1959 by BF Goodrich company. This material has various uses in industry due to its properties. It can be said that its most important application is the production of mobile phone accessories.


The sides of frame are made of jelly and flexible so that in addition to fully protecting the phone, it covers it completely and prevents the phone from being dropped from the frame, as well as facilitating the installation and removal of the frame.

The back of the BLB-331, which is made of strong glass, distinguishes this frame from other jelly covers.

Advantages such as durability of the sides of the frame and not losing the transparency of the back cover can be mentioned for Transparent TPU Back Case BLB-331.

Having longer edge of BLB-331 from the surface of the phone prevents the camera lens from colliding with the surfaces on which the phone is located and does not cause blurring and cracking on the lens.

BLB-331 is very light and compact and it covers buttons with embossed form and it is also Easy to install and washable.

BLB-331 is a suitable back cover for IPHONE 13 PRO MAX 6.7"inch and it is available in transparent form without any colors to order.

Advantages of using Back cover and screen protector

It may happen to anyone that their mobile phone falls to the ground due to a small carelessness. Or when we put the mobile phone in a pocket or bag or car dashboard, it will be damaged due to its proximity to other objects.

Back cover and screen protector can be used to prevent damage to the body of the mobile phone and minimize damage.

Types of back covers in terms of construction material

There are different back covers in terms of material, which are mainly made of plastic and petroleum products or metal or leather. Here we want to explain some of them:


Silicone back covers have a jelly form. It has a lot of flexibility and when used in the preparation of phone cases, it sticks around the phone and maintains the original shape and form of the phone.

The gel-like feature of it in thick covers makes it possible to avoid damage of impact to the mobile phone.

Softness, non-slip structure, cheap price, strength and durability are other advantages of silicone back covers.

Plastic phone covers

Plastic is a flexible and durable material that is used in the manufacture of mobile back covers.

Advantage of using plastic in mobile back cover High color variety and cheap price and at the same time its good resistance against impact and scratches.


Polycarbonate belongs to the family of thermoplastic polymers. This material can be widely used in molding and thermal modifications. Polycarbonate is a hard, durable and lightweight plastic material.

High strength and stability, light weight, anti-cracking and crushing are main advantages of using polycarbonate in mobile back covers.


Polyurethane is foam and very light.

Polyurethanes used in the manufacture of back covers and mobile frames are usually found in hard or soft form. It is easily shaped and recyclable.


These frames are made of a combination of two models of soft and hard plastic. Some of them have several layers of plastic.

High strength is one of the main advantages of these frames, but due to the high density of plastic, the weight of them is a little more than other back covers and frames.