Kneeler is a piece of furniture

Furniture

Furniture is the mass noun for the movable objects intended to support various human activities such as seating and sleeping in beds, to hold objects at a convenient height for work using horizontal surfaces above the ground, or to store things...

 used for resting in a kneeling

Kneeling

Kneeling is a human position in which the weight is distributed on the knees and feet on a surface close to horizontal.The position of kneeling may be assumed for practical reasons and for reasons of social or religious custom.- Practical reasons :...

 position.

Prayer kneeler

In many churches, pew

Pew

A pew is a long bench seat or enclosed box used for seating members of a congregation or choir in a church, or sometimes in a courtroom.-Overview:Churches were not commonly furnished with permanent pews before the Protestant Reformation...

s are equipped with kneelers in front of the seating bench so members of the congregation can kneel on them instead of the floor. In a few other situations such as confessional

Confessional

A confessional is a small, enclosed booth used for the Sacrament of Penance, often called confession, or Reconciliation. It is the usual venue for the sacrament in the Roman Catholic Church, but similar structures are also used in Anglican churches of an Anglo-Catholic orientation, and also in the...

s and areas in front of an altar

Altar

An altar is any structure upon which offerings such as sacrifices are made for religious purposes. Altars are usually found at shrines, and they can be located in temples, churches and other places of worship...

, kneelers for kneeling during prayer or sacrament

Sacrament

A sacrament is a sacred rite recognized as of particular importance and significance. There are various views on the existence and meaning of such rites.-General definitions and terms:...

s may also be used.

A kneeler is also a part of the prie-dieu

Prie-dieu

A prie-dieu is a type of prayer desk primarily intended for private devotional use, but also often found in churches of the European continent. It is a small ornamental wooden desk furnished with a sloping shelf for books, and a cushioned pad on which to kneel. Sometimes, instead of the sloping...

prayer desk.