Yes eraser is allowing in LSAT test. The LSAT is an integral part of the law school admission process in the United States, Canada, and a growing number of other countries.

It provides a standard measure of acquired reading and verbal reasoning skills that law schools can use as one of several factors in assessing applicants.

The sealed zip lock bag may contain ONLY the following items:
Valid id
Wallet
Keys
Medical products (including diabetic testing supplies)
Feminine hygiene products
No. 2 or hb wooden pencils
Highlighter
Erasers (no erasers with sleeves)
Pencil sharpener
Tissues
Beverage in plastic container or juice box (maximum size: 20 oz/591 ml)—no Aluminum cans or glass containers permitted
Snack

Important dates:

United States, Canada, and the Caribbean
Saturday, September 24, 2016 (United States, Canada, and the Caribbean)
Monday, September 26, 2016 (United States, Canada, and the Caribbean)
Saturday, November 19, 2016 (United States, Canada, and the Caribbean) (Spanish LSAT only)
Saturday, December 3, 2016 (United States, Canada, and the Caribbean)
Monday, December 5, 2016 (United States, Canada, and the Caribbean)
Saturday, February 4, 2017 (United States, Canada, and the Caribbean) (nondisclosed test)
Monday, February 6, 2017 (United States, Canada, and the Caribbean)
Monday, June 12, 2017 (United States, Canada, and the Caribbean)

Australia and New Zealand
Sunday, 25 September 2016 (Australia and New Zealand)
Sunday, 4 December 2016 (Australia and New Zealand)
Sunday, 19 February 2017 (Australia and New Zealand)
Sunday, 25 June 2017 (Australia and New Zealand)

Europe, Middle East, and Africa
Saturday, September 24, 2016
Monday, September 26, 2016
Saturday, December 3, 2016
Monday, December 5, 2016
Saturday, February 4, 2017
Monday, February 6, 2017
Tuesday, June 13, 2017